The season changes of wing patterns in Coenonympha oedippus (Fabricius, 1787) (Lepidoptera: Satyridae) in low-elevational mountains of the Altai

The paper includes a detailed description of structure of a wing pattern of Altai butterfly Coenonympha oedippus (Fabricius, 1787). The study reveals the frequency of eye-like spots and pattern structures, which correlate with dynamics of representation of both sexes of this species in a population.